Objective To investigate the effects of alveolar bone quality on stress of tooth/implant-supported restoration connected by precision attachment using three-dimensional finite element approach.Methods The FEM was applied to analyze the stress distribution of tooth/implant-supported restoration connected by precision attachment under various loading conditions when the alveolar bone quality ischanged.Results The stress values of the tooth, implant and their surrounding bone increased when the quality of their surrounding bone decreased.Conclusion The stress values of the tooth, implant and their surrounding bone were closely related with the bone quality.
